Probes for measurement of moisture content, solids contents, and electrical conductivity
US5136249A · kind A · utility
70Cited by
8References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 12, 1990 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Dec 12, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Probes for the measurement of moisture content, solids content, and electrical conductivity of porous or fibrous materials, slurries, liquids, and the like using Time Domain Reflectometry comprising a conductive wire or rod extending outwardly from the embedded at one end in, a conductive base and insulated from the base by a region of dielectric material. The wire and base being dimensioned and spaced to emulate a coaxial transmission line with the wire or rod being the center conductor of the transmission line and the conductive base forming the coaxial shield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.